#114: Mindfulness, Medicine & the Biology of Stress - Dr. Craig Hassed
The FitMind Podcast: Mental Fitness, Neuroscience & Psychology
#114: Mindfulness, Medicine & the Biology of Stress - Dr. Craig Hassed
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AI Summary
In this episode of the Fitmind podcast, Professor Craig Hassed from the Monash Centre for Consciousness and Contemplative Studies shares his remarkable journey from a disillusioned 19-year-old medical student to a pioneer in integrating mindfulness into medical education. Craig recounts his first meditation experience at age 19, where without any books, teachers, or prior experience, he discovered a profound truth about the nature of consciousness—that beneath all thoughts and anxieties lies an unchanging sense of being that remains undisturbed. This pivotal moment set him on a path to incorporate mindfulness and compassion training into the medical curriculum at Monash University, giving future doctors tools beyond prescription pads to help patients manage stress, chronic pain, and mental health challenges. The conversation delves deep into the biology of stress, exploring how chronic activation of the fight-or-flight response creates "allostatic load"—a physiological wear and tear on the body. Craig explains how stress affects us at the genetic level through epigenetics, influencing which genes are expressed and which remain dormant. He discusses groundbreaking research on telomeres, the protective caps on chromosomes that shorten with stress and aging, and how meditation can actually slow this shortening and even reverse biological aging by activating repair enzymes. The episode also explores the crucial distinction between empathy and compassion, revealing how empathy can lead to burnout in healthcare professionals through empathic distress, while true compassion activates different neural circuits associated with positive emotions and affiliation without triggering the brain's stress response.
Key takeaways
- 01Meditation can reverse cellular aging at the DNA level by slowing telomere shortening and activating repair enzymes, as demonstrated by research from Elizabeth Blackburn and colleagues.
- 02Chronic stress creates 'allostatic load'—a physiological wear and tear that accelerates aging, causes immune dysregulation, and triggers disease at the genetic level through epigenetic changes.
- 03Compassion and empathy are neurologically distinct: empathy can lead to empathic distress and burnout, while compassion activates brain regions associated with positive emotions without triggering stress circuits.
- 04Simple, brief mindfulness practices integrated into daily life can be as effective as longer formal meditation sessions, with 90% of medical students at Monash reporting regular use of mindfulness techniques.
- 05The mind-body connection operates at the deepest biological levels, with mental states directly influencing gene expression, immune function, and inflammatory responses through epigenetic mechanisms.
Timestamps
Topics
Guests
Books mentioned
- FitMindLiam McClintock
Companies mentioned
Quotes
"It was just like, what an incredible relief of burden that is. It was just like, sorry, the curiosity just drew me more and more into that. So there's a very deep sense of stillness and peace that came with that. But from it, I came out of it with a deep sense that the worries and the anxieties and everything else, it was kind of like underneath all that. No matter what goes on, you're fine."
— Dr. Craig Hassed
"We now know that meditation, sitting here looking like we're doing nothing, but in a very different kind of way to really doing nothing, that it actually has an effect of switching on the repair enzymes and slowing down the rate of aging at the level of the DNA of the cells. So I just find all that stuff mind-blowing."
— Dr. Craig Hassed
"As Einstein said, everything should be made as simple as possible. Correct. But no simpler."
— Dr. Craig Hassed
"Compassion is different. The stress circuits of the brain don't light up. Here is the brain associated with positive emotions and affiliation do. It's quite neurologically, it's a very different thing."
— Dr. Craig Hassed
Transcript
If you look at telomeres, which are like a marker of our genetic ageing, the little caps on the end of our chromosomes that stop the DNA from unravelling, with stress they shorten and get whittled away fast. It's like a marker of our biological ageing. We now know that meditation, it actually has an effect of switching on the repair enzymes, slowing down the rate of ageing at the level of the DNA of the cells. How can you use these practices to help us to understand ourselves better? But I mean the research shows changes in the default mode network and so on, but also the stress circuitry. And we're starting to completely rethink our understanding of compassion and empathy. And it's not that empathy is wrong, but for most people the next step is into empathic distress. Compassion is different. The stress circuits of the brain don't light up. Here is the brain associated with positive emotions and affiliation do. It's quite neurologically, it's a very different thing. As Einstein said, everything should be made as simple as possible. Correct. But no simpler. Welcome back to the Fitmind podcast. What if the secret to reversing cellular ageing and beating professional burnout wasn't a new drug, but in a fundamental shift in how you relate to your mind? Today we're diving deep with an amazing in-person interview with Professor Craig Hassid from the Monash Centre for Consciousness and Contemplative Studies. Decades ago, Craig was a disillusioned 19-year-old medical student. He sat…